CN114271001A

CN114271001A - Transport configuration indicator state activation and deactivation

Info

Publication number: CN114271001A
Application number: CN202080059609.XA
Authority: CN
Inventors: J·H·刘; 周彦; 骆涛; K·文努戈帕尔; 白天阳; 厉隽怿
Original assignee: Qualcomm Inc
Current assignee: Qualcomm Inc
Priority date: 2019-08-30
Filing date: 2020-08-27
Publication date: 2022-04-01
Also published as: US11563550B2; US20210067306A1; WO2021042125A1; EP4022826A1

Abstract

In general, various aspects of the disclosure relate to wireless communications. In some aspects, a User Equipment (UE) may receive an activation status message identifying one or more Transmission Configuration Indicator (TCI) states or one or more spatial relationships, the activation status message configured to change one or more TCI states or one or more activation states of one or more spatial relationships in a single bandwidth portion associated with a single component carrier; and selectively changing one or more TCI states or one or more activation states of one or more spatial relationships in a plurality of bandwidth portions associated with a plurality of component carriers based at least in part on receiving the activation status message. Numerous other aspects are provided.

Description

Transport configuration indicator state activation and deactivation

Cross Reference to Related Applications

This patent application claims priority to the following applications: U.S. provisional patent application No.62/894,274 entitled "TRANSMISSION status activity AND DEACTIVATION" filed on 30.8.2019; AND U.S. non-provisional patent application No.16/947,988 entitled "TRANSMISSION CONFIGURATION INDICATOR STATE ACTIVATION AND DEACTIVATION", filed on 26.8.2020, which is hereby expressly incorporated herein by reference.

Technical Field

In general, aspects of the present disclosure relate to wireless communications and to techniques and apparatuses for transmission configuration indicator state activation and deactivation.

Background

Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasting. A typical wireless communication system may employ multiple-access techniques capable of supporting communication with multiple users by sharing the available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple-access techniques include Code Division Multiple Access (CDMA) systems, Time Division Multiple Access (TDMA) systems, Frequency Division Multiple Access (FDMA) systems, Orthogonal Frequency Division Multiple Access (OFDMA) systems, single carrier frequency division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and Long Term Evolution (LTE). LTE/LTE-advanced is an enhanced set of Universal Mobile Telecommunications System (UMTS) mobile standards promulgated by the third generation partnership project (3 GPP).

A wireless communication network may include a plurality of Base Stations (BSs) capable of supporting communication for a plurality of User Equipments (UEs). A User Equipment (UE) may communicate with a Base Station (BS) via a downlink and an uplink. The downlink (or forward link) refers to the communication link from the BS to the UE, and the uplink (or reverse link) refers to the communication link from the UE to the BS. As will be described in greater detail herein, the BS may be referred to as a node B, gNB, an Access Point (AP), a radio head, a Transmit Receive Point (TRP), a New Radio (NR) BS, a 5G node B, etc.

The above multiple access techniques have been employed in various telecommunications standards to provide a common protocol that enables different user equipment to communicate on a city, country, region, and even global level. New Radios (NR), which may also be referred to as 5G, are an enhanced set of LTE mobile standards promulgated by the third generation partnership project (3 GPP). NR is designed to better integrate with other open standards by improving spectral efficiency, reducing costs, improving services, utilizing new spectrum, and using Orthogonal Frequency Division Multiplexing (OFDM) with Cyclic Prefix (CP) (CP-OFDM) on the Downlink (DL), CP-OFDM and/or SC-FDM (e.g., also known as discrete fourier transform spread OFDM (DFT-s-OFDM)) on the Uplink (UL), to better support mobile broadband internet access, and to support beamforming, multiple-input multiple-output (MIMO) antenna techniques, and carrier aggregation. However, as the demand for mobile broadband access continues to grow, there is a need for further improvements in LTE and NR technology. Preferably, these improvements should be applicable to other multiple access techniques and telecommunications standards employing these techniques.

Disclosure of Invention

In some aspects, a method of wireless communication performed by a User Equipment (UE) may comprise: receiving an activation status message identifying one or more Transmission Configuration Indicator (TCI) states or one or more spatial relationships, the activation status message configured to change the one or more TCI states or one or more activation states of the one or more spatial relationships in a single bandwidth portion associated with a single component carrier; and selectively changing the one or more TCI states or the one or more activation states of the one or more spatial relationships in a plurality of bandwidth portions associated with a plurality of component carriers based at least in part on receiving the activation status message.

In some aspects, a UE for wireless communication may include a memory and one or more processors operatively coupled to the memory. The memory and the one or more processors may be configured to: receiving an activation status message identifying one or more TCI states or one or more spatial relationships, the activation status message configured to change the one or more TCI states or one or more activation states of the one or more spatial relationships in a single portion of bandwidth associated with a single component carrier; and selectively changing the one or more TCI states or the one or more activation states of the one or more spatial relationships in a plurality of bandwidth portions associated with a plurality of component carriers based at least in part on receiving the activation status message.

In some aspects, a non-transitory computer-readable medium may store one or more instructions for wireless communication. The one or more instructions, when executed by one or more processors of the UE, may cause the one or more processors to: receiving an activation status message identifying one or more TCI states or one or more spatial relationships, the activation status message configured to change the one or more TCI states or one or more activation states of the one or more spatial relationships in a single portion of bandwidth associated with a single component carrier; and selectively changing the one or more TCI states or the one or more activation states of the one or more spatial relationships in a plurality of bandwidth portions associated with a plurality of component carriers based at least in part on receiving the activation status message.

In some aspects, an apparatus for wireless communication may comprise: means for receiving an activation status message identifying one or more TCI statuses or one or more spatial relationships, the activation status message configured to change the one or more TCI statuses or one or more activation statuses of the one or more spatial relationships in a single portion of bandwidth associated with a single component carrier; and means for selectively changing the one or more TCI states or the one or more activation states of the one or more spatial relationships in a plurality of bandwidth portions associated with a plurality of component carriers based at least in part on receiving the activation status message.

Aspects include, in general, methods, apparatuses, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication devices, and/or processing systems as substantially described herein with reference to and as illustrated by the accompanying figures and description.

The foregoing has outlined rather broadly the features and technical advantages of examples according to the present disclosure in order that the detailed description that follows may be better understood. Additional features and advantages will be described hereinafter. The conception and specific examples disclosed may be readily utilized as a basis for modifying or designing other structures for carrying out the same purposes of the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The nature of the concepts disclosed herein (both their organization and method of operation), together with the advantages associated therewith, will be better understood from the following description when considered in connection with the accompanying figures. Each of the figures is provided for the purposes of illustration and description and is not intended as a definition of the limits of the claims.

Drawings

So that the manner in which the above recited features of the present disclosure can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to aspects, some of which are illustrated in the appended drawings. It is to be noted, however, that the appended drawings illustrate only certain typical aspects of this disclosure and are therefore not to be considered limiting of its scope, for the description may admit to other equally effective aspects. The same reference numbers in different drawings may identify the same or similar elements.

Fig. 1 is a block diagram conceptually illustrating an example of a wireless communication network in accordance with various aspects of the present disclosure.

Fig. 2 is a block diagram conceptually illustrating an example of a base station in a wireless communication network communicating with a UE in accordance with various aspects of the present disclosure.

Fig. 3A-3D are diagrams illustrating examples of TCI state activation and deactivation in accordance with various aspects of the present disclosure.

Fig. 4 is a diagram illustrating an example process performed, for example, by a user device, in accordance with various aspects of the present disclosure.

Fig. 5 is a conceptual data flow diagram illustrating an example of data flow between different modules/units/components in an example apparatus.

Fig. 6 is a diagram illustrating an example of a hardware implementation for an apparatus employing a processing system.

Detailed Description

Various aspects of the disclosure are described more fully below with reference to the accompanying drawings. This disclosure may, however, be embodied in many different forms and should not be construed as limited to any specific structure or function presented throughout this disclosure. Rather, these aspects are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. Based on the teachings herein one skilled in the art should appreciate that the scope of the present disclosure is intended to cover any aspect of the present disclosure disclosed herein, whether implemented independently of or in combination with any other aspect of the present disclosure. For example, an apparatus may be implemented or a method may be practiced using any number of the aspects set forth herein. Moreover, the scope of the present disclosure is intended to cover such an apparatus or method implemented with other structure, functionality, or structure and functionality in addition to or other than the various aspects of the present disclosure set forth herein. It should be understood that any aspect of the present disclosure disclosed herein may be embodied by one or more elements of a claim.

Several aspects of a telecommunications system will now be presented with reference to various apparatus and techniques. These apparatus and techniques are described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, procedures, algorithms, etc. (collectively referred to as "elements"). These elements may be implemented using hardware, software, or a combination thereof. Whether such elements are implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system.

It should be noted that although aspects may be described herein using terms commonly associated with 3G and/or 4G wireless technologies, aspects of the present disclosure may be applied in other generation-based communication systems, such as 5G and beyond (including NR technologies).

Fig. 1 is a diagram illustrating a wireless network 100 in which aspects of the present disclosure may be implemented. The wireless network 100 may be an LTE network or some other wireless network (e.g., a 5G or NR network). Wireless network 100 may include a plurality of BSs 110 (shown as BS110 a, BS110 b, BS110 c, and BS110 d) and other network entities. A BS is an entity that communicates with User Equipment (UE) and may also be referred to as a base station, NR BS, node B, gNB, 5G node b (nb), access point, Transmission Reception Point (TRP), etc. Each BS may provide communication coverage for a particular geographic area. In 3GPP, the term "cell" can refer to a coverage area of a BS and/or a BS subsystem serving that coverage area, depending on the context in which the term is used.

The BS may provide communication coverage for a macrocell, a picocell, a femtocell, and/or another type of cell. A macro cell may cover a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by UEs with service subscriptions. A pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs with service subscriptions. A femto cell may cover a relatively small geographic area (e.g., a residence) and may allow restricted access by UEs having an association with the femto cell (e.g., UEs in a Closed Subscriber Group (CSG)). The BS for the macro cell may be referred to as a macro BS. The BS for the pico cell may be referred to as a pico BS. The BS for the femto cell may be referred to as a femto BS or a home BS. In the example shown in fig. 1, BS110 a may be a macro BS for macro cell 102a, BS110 b may be a pico BS for pico cell 102b, and BS110 c may be a femto BS for femto cell 102 c. A BS may support one or more (e.g., three) cells. The terms "eNB", "base station", "NR BS", "gNB", "TRP", "AP", "node B", "5G NB" and "cell" may be used interchangeably herein.

In some aspects, the cell may not necessarily be stationary, and the geographic area of the cell may move according to the location of the mobile BS. In some aspects, BSs may be interconnected to each other and/or to one or more other BSs or network nodes (not shown) in wireless network 100 by various types of backhaul interfaces (e.g., direct physical connections, virtual networks, and/or the like using any suitable transport network).

Wireless network 100 may also include relay stations. A relay station is an entity that can receive a data transmission from an upstream station (e.g., a BS or a UE) and send the data transmission to a downstream station (e.g., a UE or a BS). A relay station may also be a UE that is capable of relaying transmissions for other UEs. In the example shown in fig. 1, relay station 110d may communicate with macro BS110 a and UE 120d to facilitate communication between BS110 a and UE 120 d. The relay station may also be referred to as a relay BS, a relay base station, a relay, etc.

The wireless network 100 may be a heterogeneous network including different types of BSs (e.g., macro BSs, pico BSs, femto BSs, relay BSs, etc.). These different types of BSs may have different transmit power levels, different coverage areas, and different effects on interference in wireless network 100. For example, the macro BS may have a high transmit power level (e.g., 5 to 40 watts), while the pico BS, femto BS, and relay BS may have a lower transmit power level (e.g., 0.1 to 2 watts).

Network controller 130 may be coupled to a set of BSs and may provide coordination and control for these BSs. The network controller 130 may communicate with the BSs via a backhaul. BSs may also communicate with one another, directly or indirectly, e.g., via a wireless or wired backhaul.

UEs 120 (e.g., 120a, 120b, 120c) may be dispersed throughout wireless network 100, and each UE may be stationary or mobile. A UE may also be called an access terminal, mobile station, subscriber unit, station, etc. The UE may be a cellular telephone (e.g., a smartphone), a Personal Digital Assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless telephone, a Wireless Local Loop (WLL) station, a tablet device, a camera, a gaming device, netbooks, smartbooks, ultrabooks, medical devices or appliances, biometric sensors/devices, wearable devices (smartwatches, smartclothing, smart glasses, smart wristbands, smart jewelry (e.g., smart rings, smart bracelets, etc.)), entertainment devices (e.g., music or video devices, or satellite radio units, etc.), vehicle components or sensors, smart meters/sensors, industrial manufacturing devices, global positioning system devices, or any other suitable device configured to communicate via a wireless or wired medium.

Some UEs may be considered Machine Type Communication (MTC) or evolved or enhanced machine type communication (eMTC) UEs. MTC and eMTC UEs include, for example, a robot, a drone, a remote device, a sensor, a meter, a monitor, a location tag, etc., which may communicate with a base station, another device (e.g., a remote device), or some other entity. The wireless node may provide a connection to or to a network (e.g., a wide area network such as the internet or a cellular network), for example, via a wired or wireless communication link. Some UEs may be considered internet of things (IoT) devices and/or may be implemented as NB-IoT (narrowband internet of things) devices. Some UEs may be considered Customer Premises Equipment (CPE). UE 120 may be included inside a housing that houses components of UE 120, such as a processor component, a memory component, and the like.

In general, any number of wireless networks may be deployed in a given geographic area. Each wireless network may support a particular RAT and may operate on one or more frequencies. A RAT may also be referred to as a radio technology, air interface, etc. Frequencies may also be referred to as carriers, channels, etc. Each frequency may support a single RAT in a given geographic area in order to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks may be deployed.

In some aspects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly using one or more sidelink channels (e.g., without using base station 110 as an intermediary to communicate with each other). For example, the UE 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocol (e.g., which may include vehicle-to-vehicle (V2V) protocol, vehicle-to-infrastructure (V2I) protocol, etc.), mesh networks, and/or the like. In this case, UE 120 may perform scheduling operations, resource selection operations, and/or other operations described elsewhere herein as being performed by base station 110.

As noted above, fig. 1 is provided as an example. Other examples may differ from the example described with respect to fig. 1.

Fig. 2 shows a block diagram of a design 200 of base station 110 and UE 120 (which may be one of the base stations and one of the UEs in fig. 1). The base station 110 may be equipped with T antennas 234a through 234T and the UE 120 may be equipped with R antennas 252a through 252R, where T ≧ 1 and R ≧ 1 in general.

At base station 110, transmit processor 220 may receive data for one or more UEs from a data source 212, select one or more Modulation and Coding Schemes (MCSs) for each UE based at least in part on a Channel Quality Indicator (CQI) received from the UE, process (e.g., encode and modulate) the data for each UE based at least in part on the MCS selected for the UE, and provide data symbols for all UEs. Transmit processor 220 may also process system information (e.g., for semi-Static Resource Partitioning Information (SRPI), etc.) and control information (e.g., CQI requests, grants, upper layer signaling, etc.), as well as provide overhead symbols and control symbols. Transmit processor 220 may also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS)) and synchronization signals (e.g., Primary Synchronization Signals (PSS) and Secondary Synchronization Signals (SSS)). A Transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on the data symbols, the control symbols, the overhead symbols, and/or the reference symbols, if applicable, and may provide T output symbol streams to T Modulators (MODs) 232a through 232T. Each modulator 232 may process a respective output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream. Each modulator 232 may further process (e.g., convert to analog, amplify, filter, and upconvert) the output sample stream to obtain a downlink signal. T downlink signals from modulators 232a through 232T may be transmitted via T antennas 234a through 234T, respectively. According to various aspects described in greater detail below, a synchronization signal may be generated using position coding to convey additional information.

At UE 120, antennas 252a through 252r may receive downlink signals from base station 110 and/or other base stations and may provide received signals to demodulators (DEMODs) 254a through 254r, respectively. Each demodulator 254 may condition (e.g., filter, amplify, downconvert, and digitize) a received signal to obtain input samples. Each demodulator 254 may further process the input samples (e.g., for OFDM, etc.) to obtain received symbols. A MIMO detector 256 may obtain received symbols from all R demodulators 254a through 254R, perform MIMO detection on the received symbols (if applicable), and provide detected symbols. A receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide decoded data for UE 120 to a data sink 260, and provide decoded control information and system information to a controller/processor 280. The channel processor may determine Reference Signal Received Power (RSRP), Received Signal Strength Indicator (RSSI), Reference Signal Received Quality (RSRQ), Channel Quality Indicator (CQI), and the like. In some aspects, one or more components of UE 120 may be included in a housing.

On the uplink, at UE 120, a transmit processor 264 may receive and process data from a data source 262 and control information from a controller/processor 280 (e.g., for reporting including RSRP, RSSI, RSRQ, CQI, etc.). Transmit processor 264 may also generate reference symbols for one or more reference signals. The symbols from transmit processor 264 may be precoded by a TX MIMO processor 266 if applicable, further processed by modulators 254a through 254r (e.g., for DFT-s-OFDM, CP-OFDM, etc.), and transmitted to base station 110. At base station 110, the uplink signals from UE 120 and other UEs may be received by antennas 234, processed by demodulators 232, detected by a MIMO detector 236 (if applicable), and further processed by a receive processor 238 to obtain the decoded data and control information sent by UE 120. Receive processor 238 may provide decoded data to a data sink 239 and decoded control information to controller/processor 240. The base station 110 may include a communication unit 244 and communicate with the network controller 130 via the communication unit 244. Network controller 130 may include a communication unit 294, a controller/processor 290, and a memory 292.

Controller/processor 240 of base station 110, controller/processor 280 of UE 120, and/or any other component in fig. 2 may perform one or more techniques associated with Transmission Configuration Indicator (TCI) state activation and deactivation, as described in more detail elsewhere herein. For example, controller/processor 240 of base station 110, controller/processor 280 of UE 120, and/or any other component in fig. 2 may perform or direct operations such as process 400 of fig. 4 and/or other processes as described herein.

Memories

242 and 282 may store data and program codes for base station 110 and UE 120, respectively. In some aspects, memory 242 and/or memory 282 may comprise non-transitory computer-readable media storing one or more instructions for wireless communication. For example, the one or more instructions, when executed by one or more processors of base station 110 and/or UE 120, may perform or direct the operations of, for example, process 400 of fig. 4 and/or other processes as described herein. A scheduler 246 may schedule UEs for data transmission on the downlink and/or uplink.

In some aspects, UE 120 may include: means for receiving an activation status message identifying one or more TCI statuses or one or more spatial relationships, the activation status message configured to change one or more TCI statuses or one or more activation statuses of one or more spatial relationships in a single portion of bandwidth associated with a single component carrier; means for selectively changing one or more TCI states or one or more activation states of one or more spatial relationships in a plurality of bandwidth portions associated with a plurality of component carriers based at least in part on receiving an activation state message; and so on. In some aspects, such means include one or more components of UE 120 described in connection with fig. 2, such as controller/processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, and/or the like.

As noted above, fig. 2 is provided as an example. Other examples may differ from the example described with respect to fig. 2.

In some communication systems, a UE may have multiple bandwidth portions that the UE may use for communication. For example, the UE may communicate with the BS using multiple component carriers, and each component carrier may have multiple bandwidth portions defined for the component carrier. Each bandwidth portion may have a plurality of defined TCI states. For example, the UE may have a first component carrier having a first bandwidth portion and a second bandwidth portion, and the first bandwidth portion may have defined first and second TCI states, and the second bandwidth portion may have defined third and fourth TCI states. Similarly, the UE may have a second component carrier having a third bandwidth portion and a fourth bandwidth portion, and the third bandwidth portion may have defined first and second TCI states, and the fourth bandwidth portion may have defined third and fourth TCI states.

The TCI state defines parameters for receiving and/or transmitting in the wide portion of the tape. For example, the UE may use the TCI status to determine a set of parameters used by the BS to transmit downlink signals, which may enable the UE to receive downlink signals. The information identified based at least in part on the TCI may include quasi co-location (QCL) information, beam identification information, and the like. For example, a UE may be configured with up to 128 TCI states, which may be active, inactive, and so on. To receive a downlink channel, such as a Physical Downlink Shared Channel (PDSCH) or a Physical Downlink Control Channel (PDCCH), the UE may select an active TCI state to be applied to the downlink channel to enable the UE to receive the channel. However, the use of separate activation and/or deactivation signaling may result in over-utilization of network resources. For example, the BS may send multiple transmissions on multiple bandwidth portions of multiple component carriers in a single band to activate the same TCI state. When the bandwidth portions are in the same band, the channel properties may be similar, which may result in the TCI state having the same active state over multiple different bandwidth portions.

Some aspects described herein provide for TCI state activation and/or deactivation with reduced signaling overhead. Additionally or alternatively, some aspects provide for activation and/or deactivation of another type of spatial relationship for a bandwidth portion with reduced signaling overhead. For example, the UE may receive an activation status message from the BS identifying a change to one or more TCI states or one or more activation states of one or more spatial relationships in a single bandwidth portion of a single component carrier. Further, the UE may receive an activation status indicator (e.g., which may be a field of an activation status message) that may indicate whether to apply the activation status message to multiple bandwidth portions of multiple component carriers in the same frequency band as the identified bandwidth portion of the activation status message. In this case, based on the activation status message and the activation status indicator, the UE may determine to activate or deactivate a particular TCI state, for example, in a plurality of bandwidth portions in which the particular TCI state is defined. In this way, the BS and the UE may reduce utilization of network resources relative to indicating a change to the active state of a particular TCI state separately for each bandwidth segment defining the particular TCI state.

Fig. 3A-3D are diagrams illustrating examples 300 of TCI state activation and deactivation according to various aspects of the present disclosure. As shown in fig. 3A-3D, example 300 includes BS110 and UE 120.

As further shown in fig. 3A and by reference numeral 310, the UE 120 may receive an activation status message, which may include an activation status indicator. For example, BS110 may provide an activation status message that identifies one or more TCI statuses for a single bandwidth part, one or more spatial relationships, etc. and includes a field set to indicate whether the activation status message will apply to multiple bandwidth parts. In some aspects, the UE 120 may receive an activation status message separate from the activation status indicator. For example, the UE 120 may receive the activation status indicator via a separate transmission occurring before the activation status message, concurrent with the activation status message, after the activation status message, and so on.

In some aspects, BS110 may determine the value of the activation status indicator based at least in part on receiving the UE capability indicator from UE 120. For example, UE 120 may provide a UE capability indicator to indicate whether UE 120 is able to apply an activation status message for a single bandwidth part to multiple bandwidth parts in the same frequency band. In some aspects, BS110 may transmit the activation status indicator via a particular type of message. For example, BS110 may set a flag or bit indicator of Radio Resource Control (RRC) configuration in Downlink Control Information (DCI) or a Medium Access Control (MAC) Control Element (CE) (MAC CE).

As shown in fig. 3A and further by reference numeral 320-a, in one example, the MAC CE activation status message may include a set of octets (Oct 1-Oct N) that include information identifying: a serving cell (serving cell ID) of the BS110, a bandwidth part (BWP ID) to which the activation status message is applied, and an activation status (T) of a TCI state set defined for the bandwidth part₀To T_(N-2)*8+7). In addition, the activation status message may be packagedA reservation bit (R) is included that is set to a value that indicates whether TCI state activation or deactivation (e.g., activation states of a set of TCI states) for a bandwidth portion is to be applied to one or more other bandwidth portions in the same band.

Similarly, as shown in fig. 3B and by reference numeral 320-B, in another example of an activation status message, the activation status message may include a set of octets that includes information identifying a serving cell, a bandwidth portion, a set of semi-persistent (SP) Channel State Information (CSI) Reference Signal (RS) resources, a set of SP CSI Interference Measurement (IM) resources, and a set of TCI states. In this case, the activation status message includes a set of reserved bits to indicate a change to the activation status, e.g., a set of CSI-RS resources, a set of CSI-IM resources, a set of TCI states, etc., whether the activation status message applies to a single bandwidth portion or multiple bandwidth portions.

Similarly, as shown in FIG. 3C and by reference numeral 320-C, in another example of an activation status message, the activation status message may include information for changing the activation status of the spatial relationship. For example, the activation status message may include: a reserved bit (R) for indicating whether the activation status message applies to a spatial relationship in a plurality of bandwidth parts in the same frequency band as the identified bandwidth part; and information (resource IDs) identifying a plurality of resource set identifiers from which UE 120 may derive spatial relationships. Additionally or alternatively, the activation status message includes a field to indicate whether an SP Sounding Reference Signal (SRS) set (SP SRS resource set ID) is activated or deactivated in a single bandwidth portion or in multiple bandwidth portions based on the activation status indicator. In one example, the spatial relationship may include a relationship between the reference RS and the target SRS. In some examples, the reference RS may be a SS/PBCH block, a CSI-RS, or a SRS.

Similarly, as shown in fig. 3D and by reference numeral 320-D, in another example of an activation status message, the activation status message may include reserved bits for an activation status indicator and a field for a single TCI status (TCI status ID) identifying a single identified bandwidth portion (or multiple bandwidth portions based at least in part on the value of the activation status indicator). If the activation status indicator indicates that a single TCI status activation is to be applied to multiple bandwidth parts, the field for the single TCI status may indicate that the UE 120 is to activate the identified TCI status of all control resource sets (CORESET) on all component carriers having the same corresponding TCI status as the TCI status identifier identified in the field. For example, the activation status message may indicate that UE 120 is to activate the TCI status of CORESET 0 in the first component carrier and another TCI status of CORESET 0 in the second component carrier.

As shown in fig. 3A and further by reference numeral 330, based at least in part on receiving the activation status message, the UE 120 may change one or more activation statuses. For example, when the activation status indicator indicates that the activation status message is to be applied to a single bandwidth portion, the UE 120 may change one or more TCI states or one or more activation states of one or more spatial relationships in the single bandwidth portion. Additionally or alternatively, the UE 120 may change one or more TCI states or one or more activation states of one or more spatial relationships in the plurality of bandwidth portions when the activation status indicator indicates that the activation status is to apply to the plurality of bandwidth portions. For example, the UE 120 may activate a TCI state with a particular TCI indicator in multiple bandwidth portions. Additionally or alternatively, the UE 120 may deactivate the TCI state in the multiple bandwidth portions.

In some aspects, UE 120 may receive transmissions from BS110 based at least in part on activating or deactivating a TCI state, changing a spatial relationship, and/or the like. For example, UE 120 may receive PDSCH, PDCCH, etc. Additionally or alternatively, UE 120 may receive CSI RS, CSI IM, and/or the like. Additionally or alternatively, UE 120 may transmit SRS, or the like.

3A-3D are provided as examples. Other examples may differ from those described with respect to fig. 3A-3D.

Fig. 4 is a diagram illustrating an example process 400 performed, for example, by a UE, in accordance with various aspects of the present disclosure. The example process 400 is an example of a UE (e.g., UE 120, etc.) performing operations associated with TCI state activation and deactivation.

As shown in fig. 4, in some aspects, process 400 may include: an activation status message is received that identifies one or more TCI states or one or more spatial relationships, the activation status message configured to change the one or more TCI states or the one or more activation states of the one or more spatial relationships in a single bandwidth portion associated with a single component carrier (block 410). For example, the UE (e.g., using antennas 252, DEMOD 254, MIMO detector 256, receive processor 258, controller/processor 280, etc.) may receive an activation status message identifying one or more TCI statuses or one or more spatial relationships. In some aspects, the activation status message is configured to change one or more TCI states or one or more activation states of one or more spatial relationships in a single bandwidth portion associated with a single component carrier, as described above in connection with fig. 3A-3D.

In a first aspect, receiving the activation status message comprises: transmitting a UE capability indicator to indicate that the UE is capable of applying the activation status message to the plurality of bandwidth parts; and receiving an activation status message based at least in part on sending the UE capability indicator.

In a second aspect, alone or in combination with the first aspect, the plurality of bandwidth parts and the plurality of component carriers are in the same frequency band.

In a third aspect, alone or in combination with one or more of the first through second aspects, the activation status message is a medium access control element.

In a fourth aspect, alone or in combination with one or more of the first through third aspects, the activation status indicator is a bit indicator of a radio resource configuration message control message.

In a fifth aspect, alone or in combination with one or more of the first through fourth aspects, the activation status indicator is a bit indicator of downlink control information of a downlink shared channel medium access control element.

In a sixth aspect, the one or more TCI states are associated with semi-persistent channel state information reference signal resources or channel state information interference measurement resources, alone or in combination with one or more of the first through fifth aspects.

In a seventh aspect, the one or more spatial relationships are associated with a semi-persistent sounding reference signal resource, either alone or in combination with one or more of the first through sixth aspects.

In an eighth aspect, alone or in combination with one or more of the first through seventh aspects, the one or more TCI states are associated with physical downlink control channel resources.

In a ninth aspect, alone or in combination with one or more of the first through eighth aspects, the one or more TCI states are associated with physical downlink shared channel resources.

As further shown in fig. 4, in some aspects, process 400 may include: selectively changing one or more TCI states or one or more activation states of one or more spatial relationships in a plurality of bandwidth portions associated with a plurality of component carriers based at least in part on receiving an activation state message (block 420). For example, the UE (e.g., using antennas 252, DEMOD 254, MIMO detector 256, receive processor 258, controller/processor 280, etc.) may selectively change one or more TCI states or one or more activation states of one or more spatial relationships in a plurality of bandwidth portions associated with a plurality of component carriers based at least in part on receiving the activation status message, as described above in connection with fig. 3A-3D.

In a tenth aspect, alone or in combination with one or more of the first through ninth aspects, the activation status message is an activation message, and selectively changing one or more TCI states or one or more activation states of the one or more spatial relationships comprises: one or more TCI states or one or more spatial relationships are activated.

In an eleventh aspect, alone or in combination with one or more of the first through tenth aspects, the activation status message is a deactivation message, and selectively changing one or more activation states of the one or more TCI states includes: one or more TCI states or one or more spatial relationships are deactivated.

In a twelfth aspect, alone or in combination with one or more of the first through eleventh aspects, the selectively changing one or more activation states includes: one or more spatial relationships among the plurality of bandwidth parts are changed.

In a thirteenth aspect, alone or in combination with one or more of the first through twelfth aspects, the process 400 includes: receiving an activation status indicator indicating that an activation status message is to be applied to more than one bandwidth part, and selectively changing one or more activation statuses of one or more TCI statuses or one or more spatial relationships in a plurality of bandwidth parts associated with a plurality of component carriers comprises: changing one or more TCI states or one or more activation states of one or more spatial relationships in a plurality of bandwidth portions associated with a plurality of component carriers based at least in part on the activation state indicators.

In a fourteenth aspect, alone or in combination with one or more of the first through thirteenth aspects, the selectively changing one or more activation states may include: selectively changing one or more activation states based at least in part on an activation state indicator that indicates whether an activation state message is to be applied to a plurality of bandwidth portions associated with a plurality of component carriers.

Process 400 may include additional aspects, such as any single aspect or any combination of the aspects described above and/or in connection with one or more other processes described elsewhere herein.

Although fig. 4 shows example blocks of the process 400, in some aspects the process 400 may include additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted in fig. 4. Additionally or alternatively, two or more of the blocks of process 400 may be performed in parallel.

Fig. 5 is a conceptual data flow diagram illustrating an example 500 of data flow between different modules/units/components in an example apparatus 502. Apparatus 502 may comprise, for example, a UE (e.g., UE 120). In some aspects, the apparatus 502 includes a receiving module 504, a changing module 506, and a sending module 508.

In some aspects, the receiving module 504 may receive transmissions sent to the apparatus 502. For example, the receiving module 504 may receive a transmission including an activation status message, an activation status indicator, and/or the like. In some aspects, the receiving module 504 may receive a MAC CE including an activation status message and an activation status indicator, as described with respect to fig. 3A-3D.

In some aspects, the change module 506 may change one or more TCI states or one or more activation states of one or more spatial relationships. For example, based on the activation status indicator indicating that the activation status message is to be applied to the plurality of bandwidth portions, the change module 506 may activate or deactivate the TCI status in the plurality of bandwidth portions to enable the apparatus 502 to receive transmissions from, for example, a BS (e.g., BS110), as described with respect to fig. 3A-3D.

In some aspects, the transmitting module 508 may transmit information to, for example, a BS. For example, the transmitting module 508 may provide a UE capability indicator that indicates that the apparatus 502 is capable of applying a single activation status message for a single bandwidth part to multiple bandwidth parts, as described with respect to fig. 3A-3D.

In some aspects, the apparatus 502 may include additional modules that perform each of the blocks of the algorithm in the flow chart of fig. 4 described above. Each of the blocks in the flow diagram of fig. 4 described above may be performed by a module, and the apparatus 502 may include one or more of those modules. A module may be one or more hardware components specifically configured to perform the process/algorithm, implemented by a processor configured to perform the process/algorithm, stored within a computer-readable medium for implementation by a processor, or some combination thereof.

The number and arrangement of modules shown in fig. 5 are provided as examples. In practice, there may be additional modules, fewer modules, different modules, or modules arranged in a different manner than those shown in fig. 5. Further, two or more of the modules shown in fig. 5 may be implemented within a single module, or a single module shown in fig. 5 may be implemented as a plurality of distributed modules. Additionally or alternatively, a set of modules (e.g., one or more modules) shown in fig. 5 may perform one or more functions described as being performed by another set of modules shown in fig. 5.

Fig. 6 is a diagram illustrating an example 600 for a hardware implementation of an apparatus 502' (e.g., the apparatus 502 described above in connection with fig. 5) employing a processing system 602. Apparatus 502' may comprise, for example, a UE (e.g., UE 120).

The processing system 602 may be implemented with a bus architecture, represented generally by the bus 604. The bus 604 may include any number of interconnecting buses and bridges depending on the specific application of the processing system 602 and the overall design constraints. The bus 604 couples various circuits together, including one or more processors and/or hardware modules, represented by the processor 606, the

modules

504, 506, and/or 508, and the computer-readable medium/memory 608. The bus 604 may also connect various other circuits such as timing sources, peripherals, voltage regulators, and power management circuits, which are well known in the art, and therefore, will not be described again.

The processing system 602 may be coupled to a transceiver 610. The transceiver 610 is coupled to one or more antennas 612. The transceiver 610 provides a means for communicating with various other apparatus over a transmission medium. The transceiver 610 receives signals from one or more antennas 612, extracts information from the received signals, and provides the extracted information to the processing system 602. Further, the transceiver 610 receives information from the processing system 602 and generates signals to apply to the one or more antennas 612 based at least in part on the received information.

The processing system 602 includes a processor 606 coupled to a computer-readable medium/memory 608. The processor 606 is responsible for general processing, including the execution of software stored on the computer-readable medium/memory 608. The software, when executed by the processor 606, causes the processing system 602 to perform the various functions described herein for any particular apparatus. The computer-readable medium/memory 608 may also be used for storing data that is manipulated by the processor 606 when executing software. The processing system also includes at least one of

modules

504, 506, and/or 508. The modules may be software modules running in the processor 606 that are resident/stored in the computer readable medium/memory 608, one or more hardware modules coupled to the processor 606, or some combination thereof.

In some aspects, an apparatus 502 for wireless communication comprises: means for receiving an activation status message identifying one or more TCI statuses or one or more spatial relationships, the activation status message configured to change one or more TCI statuses or one or more activation statuses of one or more spatial relationships in a single portion of bandwidth associated with a single component carrier; means for selectively changing one or more TCI states or one or more activation states of one or more spatial relationships in a plurality of bandwidth portions associated with a plurality of component carriers based at least in part on receiving an activation state message. The aforementioned means may be one or more of the aforementioned modules of apparatus 502 and/or processing system 602 of apparatus 502' configured to perform the functions recited by the aforementioned means.

As noted above, fig. 6 is provided as an example. Other examples may differ from the example described with respect to fig. 6.

The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit aspects to the precise form disclosed. Modifications and variations are possible in light of the above disclosure or may be acquired from practice of various aspects.

As used herein, the term "component" is intended to be broadly interpreted as hardware, firmware, and/or a combination of hardware and software. As used herein, a processor is implemented in hardware, firmware, and/or a combination of hardware and software.

As used herein, meeting a threshold may refer to a value greater than a threshold, greater than or equal to a threshold, less than or equal to a threshold, not equal to a threshold, and/or the like, depending on the context.

It will be apparent that the systems and/or methods described herein may be implemented in different forms of hardware, firmware, and/or combinations of hardware and software. The actual specialized control hardware or software code used to implement the systems and/or methods is not limiting of various aspects. Thus, the operation and behavior of the systems and/or methods were described herein without reference to the specific software code-it being understood that software and hardware may be designed to implement the systems and/or methods based, at least in part, on the description herein.

Even if specific combinations of features are recited in the claims and/or disclosed in the specification, these combinations are not intended to limit the disclosure of the various aspects. Indeed, many of these features may be combined in ways not specifically recited in the claims and/or specifically disclosed in the specification. While each dependent claim listed below may depend directly on only one claim, the disclosure of the various aspects includes a combination of each dependent claim with every other claim in the set of claims. A phrase referring to "at least one of a list of items" refers to any combination of those items, including a single member. For example, "at least one of a, b, or c" is intended to encompass any combination of a, b, c, a-b, a-c, b-c, and a-b-c, as well as multiples of the same element (e.g., any other ordering of a, b, and c), a-a-a, a-a-b, a-a-c, a-b-b, a-c-c, b-b-b, b-b-c, c-c, and c-c-c, or a, b, and c).

No element, act, or instruction used herein should be construed as critical or essential unless explicitly described as such. In addition, as used herein, the articles "a" and "an" are intended to include one or more items, and may be used interchangeably with "one or more. Further, as used herein, the terms "set" and "group" are intended to include one or more items (e.g., related items, unrelated items, combinations of related items and unrelated items, etc.) and may be used interchangeably with "one or more. Where only one item is intended, the phrase "only one" or similar language is used. Further, as used herein, the terms "having," "has," "having," and/or the like are intended to be open-ended terms. Further, the phrase "based on" is intended to mean "based, at least in part, on" unless explicitly stated otherwise.

Claims

1. A method of wireless communication performed by a User Equipment (UE), comprising:

receiving an activation status message identifying one or more Transmission Configuration Indicator (TCI) states or one or more spatial relationships, the activation status message configured to change the one or more TCI states or one or more activation states of the one or more spatial relationships in a single bandwidth portion associated with a single component carrier; and

selectively changing the one or more TCI states or the one or more activation states of the one or more spatial relationships in a plurality of bandwidth portions associated with a plurality of component carriers based at least in part on receiving the activation status message.

2. The method of claim 1, wherein the activation status message is an activation message, and

wherein selectively changing the one or more TCI states or the one or more activation states of the one or more spatial relationships comprises:

activating the one or more TCI states or the one or more spatial relationships.

3. The method of claim 1, wherein the activation status message is a deactivation message, and

wherein selectively changing the one or more activation states of the one or more TCI states comprises:

deactivating the one or more TCI states or the one or more spatial relationships.

4. The method of claim 1, wherein selectively changing the one or more activation states comprises:

changing the one or more spatial relationships in the plurality of bandwidth portions.

5. The method of claim 1, further comprising:

transmitting a UE capability indicator to indicate that the UE is capable of applying the activation status message to the plurality of bandwidth parts; and is

Wherein receiving the activation status message comprises:

receiving the activation status message based at least in part on transmitting the UE capability indicator.

6. The method of claim 1, wherein the plurality of bandwidth parts and the plurality of component carriers are in a same frequency band.

7. The method of claim 1, wherein the activation status message is a media access control element.

8. The method of claim 1, wherein selectively changing the one or more activation states comprises:

selectively changing the one or more activation states based at least in part on an activation state indicator indicating whether the activation state message is to be applied to the plurality of bandwidth portions associated with the plurality of component carriers.

9. The method of claim 8, further comprising:

receiving the activation status indicator indicating that the activation status message is to be applied to more than one portion of bandwidth; and is

Wherein selectively changing the one or more TCI states or the one or more activation states of the one or more spatial relationships in the plurality of bandwidth portions associated with the plurality of component carriers comprises:

changing the one or more TCI states or the one or more activation states of the one or more spatial relationships in the plurality of bandwidth portions associated with the plurality of component carriers based at least in part on the activation state indicators.

10. The method of claim 8, wherein the activation status indicator is a bit indicator of a radio resource configuration message control message.

11. The method of claim 8, wherein the activation status indicator is a bit indicator of downlink control information of a downlink shared channel medium access control element.

12. The method of claim 1, wherein the one or more TCI states are associated with a semi-persistent channel state information reference signal resource or a channel state information interference measurement resource.

13. The method of claim 1, wherein the one or more spatial relationships are associated with a semi-persistent sounding reference signal resource.

14. The method of claim 1, wherein the one or more TCI states are associated with physical downlink control channel resources.

15. The method of claim 1, wherein the one or more TCI states are associated with physical downlink shared channel resources.

16. A User Equipment (UE) for wireless communication, comprising:

a memory; and

one or more processors operatively coupled to the memory, the memory and the one or more processors configured to:

17. The UE of claim 16, wherein the activation status message is an activation message, and

wherein, when selectively changing the one or more TCI states or the one or more activation states of the one or more spatial relationships, the one or more processors are configured to:

activating the one or more TCI states or the one or more spatial relationships.

18. The UE of claim 16, wherein the activation status message is a deactivation message, and

wherein, when selectively changing the one or more activation states of the one or more TCI states, the one or more processors are configured to:

19. The UE of claim 16, wherein, when selectively changing the one or more activation states, the one or more processors are configured to:

20. The UE of claim 16, wherein the one or more processors are further configured to:

Wherein, when receiving the activation status message, the one or more processors are configured to:

21. The UE of claim 16, wherein the plurality of bandwidth parts and the plurality of component carriers are in a same frequency band.

22. The UE of claim 16, wherein the activation status message is a medium access control element.

23. The UE of claim 16, wherein, when selectively changing the one or more activation states, the one or more processors are configured to:

24. The UE of claim 23, wherein the one or more processors are further configured to:

Wherein, when selectively changing the one or more TCI states or the one or more activation states of the one or more spatial relationships in the plurality of bandwidth portions associated with the plurality of component carriers, the one or more processors are configured to:

25. The UE of claim 23, wherein the activation status indicator is a bit indicator of a radio resource configuration message control message.

26. The UE of claim 23, wherein the activation status indicator is a bit indicator of downlink control information of a downlink shared channel medium access control element.

27. The UE of claim 16, wherein the one or more TCI states are associated with a semi-persistent channel state information reference signal resource or a channel state information interference measurement resource.

28. The UE of claim 16, wherein the one or more spatial relationships are associated with a semi-persistent sounding reference signal resource.

29. A non-transitory computer-readable medium storing one or more instructions for wireless communication, the one or more instructions comprising:

one or more instructions that, when executed by one or more processors of a User Equipment (UE), cause the one or more processors to:

30. An apparatus for wireless communication, comprising:

means for receiving an activation status message identifying one or more Transmission Configuration Indicator (TCI) states or one or more spatial relationships, the activation status message configured to change the one or more TCI states or one or more activation states of the one or more spatial relationships in a single portion of bandwidth associated with a single component carrier; and

means for selectively changing the one or more TCI states or the one or more activation states of the one or more spatial relationships in a plurality of bandwidth portions associated with a plurality of component carriers based at least in part on receiving the activation status message.